Snap hook



May 4 1926. 1,583,347 J. A. FRlscHKNEcHT SNAP HOOK Filed July 7; 1925KNECHT,

' siding at ing means for tion.

' opening '9 in Patented May 4, 1926. I

" JOHN A. rm'son unon'r, or GONNELL, WASHiNGTON.

slur HOOK.

App lication'filed July 7, 1925. Serial No. 42,065.

I To all whom it may concern:

Be it known that 1, JOHN A. Fraser:-

a cltizen of the United States, re- Connell, in the county of Franklinand State of Washington, have invented certainnew and usefulImprovements in'Sna-p Hooks, of which the following is aspecificainvention relates to improvements in hooks and moreparticularly to lockthe same; j i It is an object of 'theinvention'toprovide a hook having aspring pressed plunger for closing the hookopening and means for locking the plunger against movement to preventaccidental opening. of the hook.

A further object of the invention is to provide a device oftheabove-mentioned chary snap acter which is simple and durable in construction, reliable and eflicient in operation and inexpensive tomanufacture.

Other objects and advantages of the invention will be apparent, duringthe course of the following description.

In the accompanying drawing-forming a part of this specification and inwhich like numerals are empolyed to designate like parts throughout thesame.

Fig. 1 is a side elevation of my improved snap hook,

Fig. 2 is a longitudinal sectional view of the same, and,

Fig. 3 is a perspective view of the locking lever.

In the drawing, wherein for the purpose of illustration I have shown apreferred embodiment of my invention, the hollow body or shank 5 isclosed at both ends, having an integral loop 6 at one end and anintegral hook 7 at the opposite end. A spring pressed plunger 8,slidably mounted in the body, is adapted to extend through an the endnearest the hook and engage the free end thereof, to close the gapbetween the hook and body. A coil spring 10 having one end bearingagainst the end of the body and its opposite end against the end of theplunger, normally retains the latter in a locked position. The spring isheld in place by the opposed pins 11 which project from. the end of theplunger and the end of the body, entering. the convolutions of thespring. A knob 12 'is formed integral with the pin 13 projecting fromthe plunger, and movable in the slot 14 through the body, whereby theplunger may-beretracted toopen the hook. i v

To prevent accidental opening ofthe ghook a locking means 1s providedconsistingof' a lever .15 journaled on the transverse pivot 16 mountedin the sides of the casing 17 cast integral with the outside of'thebody. The forward end of the lever is"forked,""at as 18, being curveddownwardlyand extending through an opening 19 in the body.

The forked end engages an annular groove.

20, formed adjacent the rear end-ofthe plunger 8' holding the plungeragainst retraction until'released. The oppositeiend of the lever 15 isbifurcated, as at 21, to receive the lower end of the push button 22,which is connected therewith by the pivot pin 23. The upper end of thepush button extends through an opening 24:, projecting above the topofthe casing. A spring 25 is. mounted between the body and rear end ofthe lever normally holding the latter in a locked position. i

In use, the gap between the hook and shank is normally closed by thespring pressed plunger having means for manually retracting the plungerto open thehook. To prevent accidental opening of the hook the forkedend of the locking lever engages the annular groove in the plungerholding the same against movement.

To release the lever, the push button connected therewith is depressed,lifting the forked end out of the groove and thereby, permitting theplunger to be retracted to :openthe hook.

. It is to be understood that the form of my invention herewith shownand described is to be taken as a preferred example of the same and thatcertain changes in the shape,

size and arrangement of parts may be resorted to without departingfrom'the spirit of the invention or the scope of the subjoined I claims:

Having thus described my invention I claim:

1. In a snap hook, the combination of a hollow body having a hookformedat one end, a spring pressed plunger slidably mounted in said bodyadapted to abut the free end of said hook, an annular groove.formed'adjacent the rear end of said plunger and a forked leverpivotally mounted in said body adapted to releasably engage the groovein said plunger. 7 I

2. In a snap h k, the combination of a having a forked end adapted toreleasably' engage the groove in said plunger, and means for releasngsaid lever.

3. In a snap hook, the combination of a hollow body having a hook formedat one end, a spring pressed plunger slidaibily mounted in said bodyadapted to abut the free end of said hook, an annular groove formedadjacent the rear end of said plunger, a casing formed integral with theoutside of said body and having communication therewith, a lever,pivoted in said casing having a forked end adapted to releasably engagesaid groove, spring means for normally holding said lever in engagementwith said groove and means for releasing said lever. H r c 4. In a snaphook, the combination of a hollow body having'a hook formed at one end,a spring pressed plunger slidably mounted in said body adapted toproject through one end of the body and normally abut the free end ofsaid hook, a casing formed integral with the outside of said body havingcommunication with the interior thereof, a locking lever pivotallymounted in said casing having its forward end curved downwardly into thebody, said forward end being forked and adapted .to engage the groovesurrounding the rear end of said plunger, springs means for normallyholding said lever in engagement with saidplunger and means connectedwith the rear end of said lever, extending through said casing forreleasing said lever.' v

In testimony whereofI afliX my signature.

JOHN A. FRISCHKNECHT.

